14.
CDM
• Nature of the Key Material unspecified.
– i.e. “Key Material” is not simply a key
– Likely encrypted
• Not accessible in the browser
• Large scope
– Decoder or not
– No codec/container specified (H264/VP8, ISOBMF/WebM, *can* use CENC)
– Deployed with the browser or within the OS or the hardware (ARM trusted
zone…)
• The EME draft defines one very simple CDM
– Clear Key
– Not realistic because Key Material is accessible to the Web application and the
browser
– permits the HTML WG to demonstrate interoperability of the API
2/27/2014
Hangout Squad #2
14